That camera doesn’t yet exist, but it will definitely be among the updates to Apple MacBook Pro line unveiled later today. FaceTime for Mac supports 720p video calling on Macs that have the new camera, or VGA-quality calling on Mac-to-Mac calls using the previous built-in iSight camera. FaceTime for Mac also supports calls between Macs and the iPhone 4 or latest generation iPod touch.

Unlike the beta, FaceTime for Mac isn’t at the App Store. The release version will cost you $0.99, unless you’re purchasing a new MacBook Pro, in which case we’re hearing you’ll get the app for free. No word yet on whether other new shipping Macs will also include the app for free.

As of this writing, the FaceTime beta is still available for free from Apple’s website. I definitely recommend trying to grab this download while it’s live for existing Mac owners, since I can’t see any significant differences between it and the shipping version at this time, beyond possibly support for the new HD cameras. FaceTime is definitely impressive, but I’m not sure I’d pay $0.99 for it when I’ve still got iChat for general Mac-to-Mac video calling purposes. Check out the video below for a sample of FaceTime for Mac in action.